TREA

Chang-Yen Tsai

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  • Bloomfield, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dance shoe
    • Patent number D707927
    • Issue date Jul 1, 2014
    • Ballet Makers, Inc.
    • Melissa Nataadiningrat
    • D02 - Apparel and haberdashery
  • Information Patent Grant

    Tap for dance shoe
    • Patent number 8,753,734
    • Issue date Jun 17, 2014
    • Ballet Makers, Inc.
    • Chang-Yen Tsai
    • A43 - FOOTWEAR

Patents Applicationslast 30 patents

  • Information Patent Application

    SHOE STRAPPING SYSTEM
    • Publication number 20160007688
    • Publication date Jan 14, 2016
    • Ballet Makers, Inc.
    • Melissa Nataadiningrat
    • A43 - FOOTWEAR
  • Information Patent Application

    SHOE SOLE AND INTERCHANGEABLE HEEL
    • Publication number 20150089833
    • Publication date Apr 2, 2015
    • Ballet Makers, Inc.
    • Chang-Yen Tsai
    • A43 - FOOTWEAR
  • Information Patent Application

    Tap for Dance Shoe
    • Publication number 20140113100
    • Publication date Apr 24, 2014
    • Ballet Makers, Inc.
    • Chang-Yen Tsai
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC